I, myself suffer (no matter where I am) to a bit of a
sneeze fest (5-6 when I usually only
sneeze once (or almost never) any other time) when ever I cough while eating; ie something goes down the wrong pipe or whatever might cause the cough. I also have post nasal drip (if I don't use an antihistamine) which causes me to cough; it something is too cold, or scratchy; like a grit of some protein powders in a smoothie (yes that sensitive.) Maybe in your case it is sneezing.